A surprise from the Pioneer Venus photos was that:
A) the craters on Venus are all large.
B) the clouds rotate around the planet in only four days, very unlike the slow surface rotation.
C) the clouds of Venus are mainly water vapor, like our own.
D) the highest volcano, Maxwell Mons, protrudes above the cloud deck.
E) no impact craters at all are found on the Venusian surface.
B
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If one of the caissons of the Falkirk Wheel contained a sunken boat, resting on its bottom, and the other carried a floating boat, the wheel balance would
A) still be maintained. B) be upset and more energy would be needed for operation. C) render the machine useless. D) violate Archimedes' principle.
Consider the n = 9 shell
(a) What is the largest value of the orbital quantum number, l, in this shell? (b) How many electrons can be placed in this shell?
A solid object labeled A weighs more than another solid object labeled B. Which of the following are true?
a. A occupies more volume than B. b. A has a greater weight density than B. c. A has a greater specific gravity than B. d. A has greater volume but lesser weight density than B. e. none of the above
A pattern of vibration that simulates a wave that is standing still:
a) Interference b) Standing wave c) Reflection d) Diffraction